Shiyun had $45 less than Risa at first. After Risa and Shiyun spent an equal amount of money, Shiyun had
38 as much as Risa. How much money did Shiyun have left?
| |
Shiyun |
Risa |
Difference |
| Before |
1 u |
1 u + $45 |
$45 |
| Change |
- 1 |
- 1 |
|
| After |
3 p |
8 p |
5 p |
Difference in the amounts between Risa and Shiyun
= 8 p - 3 p
= 5 p
Since both Risa and Shiyun spent an equal amount, the difference in the amounts that Risa and Shiyun had at first and in the end remains unchanged.
5 p = 45
1 p = 45 ÷ 5 = 9
Amount that Shiyun had left
= 3 p
= 3 x 9
= $27
Answer(s): $27
